FEMALE REPRODUCTIVE ORGAN
TESTES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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at birth
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before birth
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at the onset of adulthood
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at the onset of puberty
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Detailed explanation-1: -Oogenesis. Oogenesis begins before birth but is not finished until after puberty. A mature egg forms only if a secondary oocyte is fertilized by a sperm. Oogenesis begins long before birth when an oogonium with the diploid number of chromosomes undergoes mitosis.
Detailed explanation-2: -Oogenesis begins in the fetus. Oogenesis is the formation of the ova or the female sex gamete. It begins in the early fetus when primordial germ cells migrate from the yolk sac of the embryo to the genital ridge at 5–6 weeks of gestation.
Detailed explanation-3: -What is Oogenesis? Oogenesis is the process of formation of female gametes. This process begins inside the fetus before birth. The steps in oogenesis up to the production of primary oocytes occur before birth.